I apologize for the delayed response as I understand how important it is to have all of your contacts! If you were previously using Backup Assistant on the Blackberry, go to the App Store on the iPhone and search for VZ Contact Transfer. Make sure Wi-Fi is turned off because the app will only work over the cellular network. Once downloaded follow the on screen instructions to restore all of your previous contacts! Here is a link with the detailed instructions! http://support.verizonwireless.com/how_to_use/transfer_contacts/iphone_vz_transfer.html
If you do need more help getting your contacts transferred, I would be happy to assist further!
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